[Help: Setting up a server]

Download and install the 64-bit version from http://java.com/en/download/manual.jsp

Leave the 32-bit version installed.

[Help: Setting up a server]

Glad it worked for you

For future readers who stumble across this post:

How do I know if i have uninstalled every version?

Just keep uninstalling versions of Java until there aren't any versions left in the Programs and Features window to uninstall

[Help: Setting up a server]

I meant at the system command prompt, not the server command prompt. Also, there's a space between the word java and the dash.

My next advice is likely to be the same anyway: You probably actually have multiple Java versions installed. Uninstall *all* versions of Java on your computer, then install the latest version, which is version 7 update 5 or 1.7 update 5 (same thing)

[Help: Setting up a server]

command prompt

[Help: Setting up a server]

what does "java -version" (without quotes) return?

[Help: Setting up a server]

Your Java is out of date.